average number of weekdays in month

Example: A high-speed road has 10 entrances, each entrance can only enter 1 vehicles per second 1, please ask 1 seconds up to a few cars.    Tps=10 2, how long each car needs to respond. Reponse time = 1 3, change to 20 cars, can enter several per

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Approximate test instructions:A popular Science article, article 80% is useless information, because all is common sense, but also have to see, because 20% is ordinary people do not know the historical knowledge.Defined:Goog Month: Month of Monday

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